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<p>Related to tainted kernel, I faced the same issue when I deployed
rtpengine on a Suse Enterprise many months ago, so I do not really
remember the exact steps, but there is a way to disable the check
of signed kernel modules (iirc, these are only the ones coming
from the kernel source tree, so if you need to load any external
kernel module, you have to disable this option).</p>
<p>Quick check on the net, it may have to do with module.sig_enforce
option for kernel loading.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="moz-cite-prefix">On 11.09.20 21:31, Andrew Chen wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAEytwJ1jE92CFnJ+_8hOmTw+z1QUSH4vx3-yhMP-UJqHPUOSpg@mail.gmail.com">
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<div dir="ltr">
<div dir="ltr">
<div dir="ltr">Sorry let me clarify this line here:
<div><br>
</div>
<div>"...at the time, I was running an older version 8.0.x
so I recompiled all the ngcp packages under this kernel
and completed the installation without issues.."</div>
<div><br>
</div>
<div>8.0.x is the older ngcp version. I recompiled version
9.0.1.0 under that new kernel version 5.3.0-1035-aws
#37-Ubuntu</div>
<div><br>
</div>
</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Sep 11, 2020 at 3:29
PM Andrew Chen <<a href="mailto:achen@fuze.com"
moz-do-not-send="true">achen@fuze.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">Thanks Alex.
<div><br>
</div>
<div>So it turns out my rtpengine stopped working
after our latest kernel upgrade to:</div>
<div><br>
</div>
<div>
<div>Linux sjomainrtpe30 5.3.0-1035-aws #37-Ubuntu
SMP Sun Sep 6 01:17:09 UTC 2020 x86_64 x86_64
x86_64 GNU/Linux</div>
</div>
<div><br>
</div>
<div>at the time, I was running an older version
8.0.x so I recompiled all the ngcp packages under
this kernel and completed the installation without
issues.</div>
<div><br>
</div>
<div>As soon as we started making test calls, I
received 0 audio from those test endpoints.
Looking at the rtpengine logs, I see several
messages that's quite concerning:</div>
<div><br>
</div>
<div>
<div>Sep 11 18:43:41 sjomainrtpe30 kernel: [
13.434623] xt_RTPENGINE: loading out-of-tree
module taints kernel.</div>
<div>Sep 11 18:43:41 sjomainrtpe30 kernel: [
13.434670] xt_RTPENGINE: module verification
failed: signature and/or required key missing -
tainting kernel</div>
<div>Sep 11 18:43:41 sjomainrtpe30 kernel: [
13.434938] Registering xt_RTPENGINE module -
version 9.0.1.0+0~mr9.0.1.0</div>
</div>
<div><br>
</div>
<div>and</div>
<div><br>
</div>
<div>
<div>Sep 11 18:49:50 sjomainrtpe30
rtpengine[1030]: WARNING:
[2-7859@2600:1f1c:4ff:3e01:f64d:2f67:c0fa:c931
port 50000]: No support for kernel packet
forwarding available (decryption cipher or HMAC
not supported by kernel module)</div>
</div>
<div><br>
</div>
<div>which I assume is due to the first error I
pasted.</div>
<div><br>
</div>
<div>So I tried</div>
<div><br>
</div>
<div>- rebooting the system which maybe the module
wasn't loaded properly.</div>
<div>- I reran modprobe to make sure the module is
installed</div>
<div>- I ran some dkms command to see if any error
pop up due to the kernel version I'm running and I
see no errors:</div>
<div><br>
</div>
<div>
<div>dkms status</div>
<div>falco, 0.20.0+d77080a, 5.3.0-1032-aws,
x86_64: installed</div>
<div>falco, 0.20.0+d77080a, 5.3.0-1035-aws,
x86_64: installed</div>
<div>ngcp-rtpengine, 9.0.1.0+0~mr9.0.1.0,
5.3.0-1032-aws, x86_64: installed</div>
<div>ngcp-rtpengine, 9.0.1.0+0~mr9.0.1.0,
5.3.0-1035-aws, x86_64: installed</div>
<div><br>
</div>
</div>
<div>So I'm running out of options.</div>
<div><br>
</div>
<div>Any advice?</div>
<div><br>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Sep 11, 2020 at
3:17 PM Alex Balashov <<a
href="mailto:abalashov@evaristesys.com" target="_blank"
moz-do-not-send="true">abalashov@evaristesys.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">There is an RTPEngine
mailing list, I believe, but RTPEngine questions <br>
are often posed here given its close association with
Kamailio. What's <br>
going on?<br>
<br>
On 9/11/20 2:57 PM, Andrew Chen wrote:<br>
> Hey guys,<br>
> <br>
> Is this the right place to ask about rtpengine (ngcp)
related issues <br>
> with kernel packet forwarding?<br>
> <br>
> Thanks.<br>
> <br>
> -- <br>
> Andy Chen<br>
> Sr. Telephony Lead Engineer<br>
> achen@ <mailto:<a
href="mailto:achen@thinkingphones.com" target="_blank"
moz-do-not-send="true">achen@thinkingphones.com</a>><a
href="http://fuze.com" rel="noreferrer" target="_blank"
moz-do-not-send="true">fuze.com</a> <<a
href="http://fuze.com" rel="noreferrer" target="_blank"
moz-do-not-send="true">http://fuze.com</a>><br>
> <br>
> <br>
> <br>
> *Confidentiality Notice: The information contained in
this e-mail and any<br>
> attachments may be confidential. If you are not an
intended recipient, you<br>
> are hereby notified that any dissemination,
distribution or copying of this<br>
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this e-mail in error,<br>
> please notify the sender and permanently delete the
e-mail and any<br>
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or use this e-mail or<br>
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> <br>
> _______________________________________________<br>
> Kamailio (SER) - Users Mailing List<br>
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<br>
-- <br>
Alex Balashov | Principal | Evariste Systems LLC<br>
<br>
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)<br>
Web: <a href="http://www.evaristesys.com/"
rel="noreferrer" target="_blank" moz-do-not-send="true">http://www.evaristesys.com/</a>,
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target="_blank" moz-do-not-send="true">http://www.csrpswitch.com/</a><br>
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</blockquote>
</div>
<br clear="all">
<div><br>
</div>
-- <br>
<div dir="ltr">
<div dir="ltr">
<div>
<div dir="ltr">
<div dir="ltr" style="font-size:12.8px">Andy Chen</div>
<div dir="ltr" style="font-size:12.8px">
<div>Sr. Telephony Lead Engineer</div>
<div>415 516 5535 (M)</div>
<div><a href="mailto:achen@thinkingphones.com"
target="_blank" moz-do-not-send="true">achen@</a><a
href="http://fuze.com" target="_blank"
moz-do-not-send="true">fuze.com</a></div>
<div><br>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<br clear="all">
<div><br>
</div>
-- <br>
<div dir="ltr" class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div dir="ltr" style="font-size:12.8px">Andy Chen</div>
<div dir="ltr" style="font-size:12.8px">
<div>Sr. Telephony Lead Engineer</div>
<div>415 516 5535 (M)</div>
<div><a href="mailto:achen@thinkingphones.com"
target="_blank" moz-do-not-send="true">achen@</a><a
href="http://fuze.com" target="_blank"
moz-do-not-send="true">fuze.com</a></div>
<div><br>
</div>
</div>
</div>
</div>
</div>
</div>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
Kamailio (SER) - Users Mailing List
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</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Funding: <a class="moz-txt-link-freetext" href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a></pre>
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